body,html
	line-height: 1
	font-weight: 200
	font-family: 'PingFang SC','STHeitisc-Light','Helvetica-Light',arial,sans-serif

.clear
	clear: both
	&:after
		content: ""
		height: 0
		display: block

@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio: 1.5)
	.border-1px
		&::after
			-webkit-transform: scaleY(.7)
			transform: scaleY(.7)

@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio: 2)
	.border-1px
		&::after
			-webkit-transform: scaleY(.5)
			transform: scaleY(.5)